An isolation transformer basically provides a short for DC current, so maybe the stereo isn’t expecting that and thinks there is some kind of short circuit?
Just guessing, never heard of a stereo trying to detect a load like that.
An isolation transformer basically provides a short for DC current, so maybe the stereo isn’t expecting that and thinks there is some kind of short circuit?
Just guessing, never heard of a stereo trying to detect a load like that.